4. Patients must have normal organ and marrow function as followed defined: ANC >/= 1,000/mcL; Plt >/=75,000/mcL; total bilirubin </=2.0 mg/dL; AST (TGO)/ALT (TGP) </=2.5x upper limit of normal; if liver metastasis are present, then </= 5.0x upper limit; estimated creatinine clearance by Cockcroft-Gault equation > 30 mL/min